Finding the Fourth Proportional to 3,061.44, 4,215.78 and 2,274.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.44 : 4,215.78 = 2,274.12 : x
2. Step 2: Convert to fraction form
   3,061.44/4,215.78 = 2,274.12/x
3. Step 3: Cross multiply
   3,061.44x = 4,215.78 × 2,274.12
4. Step 4: Simplify right side
   3,061.44x = 9,587,189.61
5. Step 5: Solve for x
   x = 9,587,189.61/3,061.44
6. Step 6: Final answer
   x = 3,131.59